Results 231 to 240 of about 164,585 (269)
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Imaging the ultrasonic coefficient of nonlinearity: The impact of speed of sound variations
2015 IEEE International Ultrasonics Symposium (IUS), 2015Imaging the acoustical coefficient of nonlinearity, β, is of interest in a number of healthcare interventional applications. For cardiac ablation therapy, detecting the protective fibrofatty layer between the atrial wall and the esophagus would provide risk assessment with respect to esophageal injury.
Van Sloun, Ruud Jg +3 more
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Nonlinear Coefficient Measurement in Highly Dispersive Fibers
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018We present a novel approach for measuring nonlinear coefficients in fibers with significant pulse broadening. We perform a proof-of-concept demonstration for 200-m-long polarization-maintaining and single-mode fibers pumped at 1060 nm with ps pulses.
Castello-Lurbe, David +5 more
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Remarks on "On the coefficient of nonlinearity in nonlinear acoustics"
2015Through an alternate analysis, the results of Hamilton and Blackstock [J. Acoust. Soc. Am. 83, 74-77 (1988)] are reviewed and a new interpretation is presented. In this view, the nonlinearity of the momentum equation is examined, and its effect on the coefficient of nonlinearity is revealed.
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A Nonlinear Random-Coefficients Model for Degradation Testing
Technometrics, 2004As an alternative to traditional life testing, degradation tests can be effective in assessing product reliability when measurements of degradation leading to failure can be observed. This article presents a degradation model for highly reliable light displays, such as plasma display panels and vacuum fluorescent displays (VFDs).
Suk Joo Bae, Paul H. Kvam
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Interpolation of the Coefficients in Nonlinear Elliptic Galerkin Procedures
SIAM Journal on Numerical Analysis, 1984The use of interpolation for the evaluation of integrals in nonlinear Galerkin methods can lead to important savings in computational effort. \textit{I. Christie, D. F. Griffiths, A. R. Mitchell} and the first author [IMA J. Numer. Anal. 1, 253-266 (1981; Zbl 0469.65072)] have introduced the term product approximation to refer to finite-element ...
Sanz-Serna, J. M., Abia, L.
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A family of nonlinear filters with data dependent coefficients
IEEE Transactions on Signal Processing, 1995A new family of data dependent nonlinear filters (DDNL) is presented. Coefficients are computed locally and the absolute distance between signal samples is used to determine a rank order dependent weighting function. The new filters have very good performance regarding noise suppression and impulse rejection and at the same time provide better edge ...
George Economou +2 more
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On Influence Coefficients and Nonlinearity for Thin Shells of Revolution
Journal of Applied Mechanics, 1959Abstract The paper is concerned with a nonlinear formulation of the problem of rotationally symmetric deformations of thin elastic shells of revolution, which are acted upon by edge forces and moments. Determined are, in particular, nonlinear corrections to the known results of the linear theory, for edge displacements and rotations. The
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Transport Coefficients in a Nonlinear Series Membrane Array
1980Despite its many noticeable successes, several limitations of the linear thermodynamic description of membrane transport, as proposed by Kedem and Katchalsky1, have been encountered. These arise as a consequence both of the various experimental non linear force- -flow relationships found to date and of some intrinsic limits of the linear treatment2,3,4.
G. Monticelli, F. Celentano
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Attractors for Kirchhoff’s equation with a nonlinear damping coefficient
Nonlinear Analysis: Theory, Methods & Applications, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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